Lock for carriage-doors.



J. P. STREEBRGER, LOCK FOR CARRIAGE DOORSx APPLIOATION1-"1LBn5EPT.e,191.

Patente@ 21.. Q

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UNITED sTATns PATENT oFFroE.

JOHN F. STREBERGEB., OF DETROIT, MICHIGAN, ASSIGNOR TO JOS. N. SMITH ANDCOMPANY. F DETROIT. MICHIGAN. .A CORPORATION.

LOCK Fon calnarnennoons.

9812651 Specification of Letters Patent. Patented iwal'. 21, 1911.

' Appneaeun inea september e, 1910. serial No. '$80,664.

To all whom it 'may concern: l the left of 'the figures. Fig. G, is a'cross scc- Be it known that I, JOHN F. S'rnannonn, tion along line 6-6in Fig. 'l viewed from a citizen of the United States, residing atabove. Fig. 7, is a view of the channeled Detroit, county of Wayne,State of Michiface of the projection frame member fitted gan, haveinvented a cert-ain new and nscful i to the door frame.

Improvement in Locks for Carria e-Doors7 Similar characters of referencerepresent and declare the follovvinr to be a full7 clear, similar 'partsin all the figures. and 'exact description o the sanie, such as i n thedrawings, 1 is the face plate of the Will enable others skilled in theart to which l latch case. l0 it pertains to make and use the saine7refer 2, are openings in which screws may be in- 85 ence being had tothe accompanying drawsorted and lhe latch-case att-ached to the ings,which form a part 'of this specication. door. This invention relates tolatches for ve i B, is the side plate of the case which is athicle orother doors, and has for. its object i cached to the end of the door byscrews a latch Which fbices the door member into a passed thronghopenings 45; 8, is the rear 70 tightvert-ical and lateral engagementwith housing plate screwed to the' posts 9 and the' frame member 'thaspreventing vibra- 10 and perforated to admit and form tion or movementeither verticall7 or later l bearing" for the barrel 11 which isintegral ally. I l with the latchlbolt erm 13 which connects '2Q Afurther object is the providing a rest the latch bolt 12 With'the barrel11. .The 75 for the door which will release the strain l face plate 1'has also a perforation which on Athe hinges. 'It is well kgtv'n thatthe l acts as a bearing for the barrel 11.- The common form o f. latchdocs not orm a l lat-ch bo'lt has is'en'd face beveled outward tight'engagementA on accoanc of the space and downward. f which must beallowed for the latch to play 14 is a recess or' the latch case formedof 30 lin its recess, 'not'. does it to any ap rcciable a plate separatefrom' or integrall with-thefextent help the hinges support the oor.housing plates ofthe latch case. The open- My invention by the use o' aspring-actn- .y ing in the face plate 1 rectangnlar except ated latchbolt to bear upon the projecting l for the projection of the reenterin'glng 15 frame member and force it' into the recess l in the one otitsidccorner; the upper 'face 1S g5 member inthe latch-case, and by providingand the lower tace 1 7 of the recess are ininterlocking lugs andchannels iir the oppoclin'etl at substantially the saine angle tositelybeveled face of the project member Ward cach other, as they recede fromthe 4and latch recess overcomes the cor'nonifanlt utac-e plate and nieetin a small curve. The oiloose' engagement, and tlieprojecting-memlinside wall 18 has an opening v 19 for the 90 '.ber being positioneddirectly under the upl latch-bolt 1Q which entersthc recess throughpergside'of the recess member, the door l the opening 2.0 in' one of thefaces'. upon theprojecting membera-nd said niemi Une of tliebeveledfaces of the recess ber acts asa hanger for the door. member and the'projecting frame member 40 In the drawnfgsz-Figure 1, is an eleva- 'iare channeled and logged, eachpossessing 95 tion of the latch-case witha portion of the a lugr on the outside and a channel on the .face platecnt away showing-part of the inside. r latchbolt, the barrel and thespring. The i '15, represents the lng of the recess 1t remainder of thelatclnbolt is shown in and 15a the lng of the projecting frame 4 dottedlines. Fig. 2, is an elevation ofthe 'niemben l 100 frame plate and theprojecting traine mem- 21, is the channel in the projecting mem- 1 berin proper position for engagement with ber and 21 the channel of therecess 14. the latch-ease as shown in Fig. 1. Fig. 3, is The channel 21of the frame member recedes 44a side View of the latch-case with-thelatchd from the apex of member?. and gradn# bolt in normal position'.Fig. 4, is a cross ally deepens and narrows toward thc basc- 105.

section of 'the frame member taken-along of the member. The top of thechannel 1- the line 4 -4 of Fig. 2 viewed-from the left. l does notnarrow as much as. the bottom and Fig. 5', is 'a vertical cross sectionthrough l hence the sido of the channel is inclined the line 5 -5 ofFig. 1 ih engagement withl from the botten outward. 'lhe channel of`4s55 the frame member as in Fig. 2 viewed from l the recess member isthe sanne shape and lic-s 11o in the same position with respect to theapex and base of the recess. The lugs are shaped the same as thechannels, and are madeilarge enough to Wedge in -nnder the pressa re otthe latch bolt. The face opposite the channeled face of the member 22 isnotched as at 26 and a Wall 27 is left between the notch and the plate23.

rl`he arm 13 of the latch-boltiis notched on the side adjacent the faceIplate and forms a collar 28 in its attachment to the barrel7 1l, thenotch and collar forming achamber 32 for the coils of the spring 29,

which engages around and is fastened at one end to the barrel 11; theother end is hooked around post 9. A square perforation 30 is providedin the barrel and in this fits a shank 31 of a knob or handle whichturns the barrel 11. This oscilla-tes the arm 1-3 in the arc of a circleas far as the stoppost 10.

33 is a pivot with part of a lever, which may be attached and used as aconnection with a. `hand lever inside the carriage;

The movement of the arm to the stop post completely withdraws thelatch-bolt from the recess 14, and after the grip on the han dle isreleased the spring causes the latch boit to.rcturn`to its position inthe recess 14 where it is stopped by the upper edge of the opening 19; 1

T-he members latch by swinging the door against the door stop andprojecting nem#- her 22.' The bevel faces of the member 22 engaging' thebeveled 'end face of the latchbolt, overcomes the tension of the springand thebolt is forced out of the way until traveling along the face ofthe' projecting frame member it meets the not-ch 26. The .s1-)ring thenforces it into the notch and the members are locked togetl'ier. The lugsand channels of the members are, as described above, tted to wedgetogether under the pressure of the latch bolt and thus form a ing casehaving' a recess with converging faces, one of which is provided with alatch bolt opening` a frame member adapted to fit in the recess, andlxavinga notch in one oifr'its faces, a spring-actmited bolt in saidhousing. adapted to be displaced by entrance of the frame nixember insaid recess and to spring into the notch in the frame member, and meansfor withdrawing said bolt from said housing recess, substantially asdescribed.'

Q .A lock, having in combination,- a case provided with a recess havingconverging faces, one of which is legged and channeled and the otherprovided with a. latch bolt opening,- a frame member Vhaving a recessand-.adapted to fit in the case recess, a spring-actuated bolt in saidcase adapted to displaeed from said recess -by entrance of the framemember therein, and 'to spring into said frame member recess and holdsaid member in tight engagement in said case recess, and means forwithdrawing saidfbolt from said frame member recess,'` substantially asdescribed.

In testimony whereof, I sign this specifi-- cation in the presence oftwo witnesses. A.

JOHN F. STREBERGER. llitiiesses:

'CHARLES F. BURTON, Lowa LEE Blur.

